Wrench.



V F. W. FRITGHEY.

WRENCH.

APPLICATION FILED 1111. 1a, 1911.

1,003,247. Pa en ed Sept. 12, 1911.

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WITNESSES nwE/yroR firm/Mn 17 1 107209! ATTORNEYS COLUMBIA PLANOGRAPHc0.. WASHINGTON. UV 6.

FRANKLIN WILLIAM FRI'ICI-IEY, OF SANDUSKY, OHIO.

WRENCH.

Specification of Letters Patent.

Application filed January 18, 1911.

Patented Sept. 12, 1911.

Serial No. 603,242;

To all whom it may concern:

Be it known that I, FRANKLIN W. FRITCHEY, a citizen of the UnitedStates, and a resident of Sandusky, inthe county of Erie and State ofOhio, have invented a new and Improved Wrench, of which the following isa full, clear, and exact description.

My invent-ion is a new and improved wrench having a fixed jaw and amovable jaw, the movable jaw being so connected to the handle that whenthe latter is pulled to turn a pipe, rod or other contrivance, the actof pulling not only exerts a leverage on the handle but also exerts aleverage action on the pivoted end of the movable jaw, causing the holdof the wrench to be tightened.

Reference is to be had to the accompanying drawings forming a part ofthis speci fication, in which similar characters of reference indicatecorresponding parts in both the views.

Figure 1 is a side elevation of my improved wrench; and Fig. 2 is a rearelevation thereof.

My improved wrench consists of a handle 1 having two flat surfaces 2 atits end, and a lateral projection 3 of somewhat greater thickness thanthe end bearing the Hat surfaces 2. One edge of the projection 3 carriesjaw teeth 4, and the adjacent end of the handle 1 carries a segment ofgear teeth 5. These teeth are arranged on intersecting arcs, as shown,and the projection 3 forms the fixed jaw of my improved wrench.

The end of the wrench carries a pivot 6, on which are mounted two links7 the lower ends of which engage the flat sides 2. The pivot 6 hashemispherical heads on its opposite ends to keep the links in place.These links are pivotally connected at their oppo site ends to a movablejaw 8, which has a reduced flat shank 9 having an opening therein tocorrespond with the openings in the adjacent ends of the links toreceive a pivot bolt 10, similar to the pivot bolt 6. The outer edge 8of this movable jaw is curved, as shown. The inner edge presents twosurfaces at right-angles to each other, these surfaces carrying engagingaw teeth 11 and 22. The shank 9 terminates in a segment of gear teeth13, which engages with the gear teeth 5 of the handle 1. A

pipe 14: is shown in dotted lines between the jaw teeth 4: and the teethon the inner side of the movable jaw, illustrating the manner in whichthe wrench operates.

To use the wrench, the movable jaw is placed over a pipe, rod or thelike, and the same is then engaged by the teeth 4:, 11 and 12. When thehandle is pulled to turn the pipe or rod, the turning force acts partlyon the pipe 14 as a pivot to turn the same, and partly on the bolt 6 asa pivot to exert a leverage action on the movable jaw 8, causing thesame to grip the pipe It more firmly. For example, if the handle 8 bepulled to the left on Fig. 1, the segment of gear teeth 13 on the end ofthe shank 9 will be caused to turn to the right. This will cause the jaw8 to move closer to the fixed jaw 8. The more the handle 1 is pulled tothe left the tighter will the pipe 14: be gripped between the jaw teeth1 and the movable jaw 8, and all slipping between the wrench and thething upon which it acts will be obviated. At the same time the fullturning force will be exerted upon the pipe or rod, or other article onwhich the wrench is being used.

It will be observed that my wrench is simple in its construction andefficient in action. It can be cheaply manufactured and is well adaptedfor all the purposes to which tools of this description are applied.

1 may obviously make such changes in the shape and size of the parts asclearly fall within the scope of my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A wrench comprising a handle having gear teeth on its end, a movablejaw, links pivotally connecting the movable jaw to the handle, gearteeth on the said jaw adjacent the links, and means carried by the jawand the handle for engaging a pipe, rod or other article to be turned.

2. A wrench comprising a handle having gear teeth on its end, a movablejaw, links connecting the said movable aw to the handle, gear teeth onthe end of said movable jaw adjacent said links, said gear teethengaging the gear teeth on the handle, and a lateral projection carriedby the handle forming a fixed aw in position to cooperate with themovable jaw.

3. A wrench comprising a handle having gear teeth on its end, a movablejaw, links pivotally connecting the said movable jaw to the handle, gearteeth on the end of said jaw adjacent said links, engaging the gearteeth on the handle, a toothed projection carried by the handle, forminga fixed jaw, and teeth onthe movable aw adjacent the jaw teeth on thehandle.

4: A wrench comprising a handle having gear teeth on its end, a movablejaw pivotally connected'to the handle and having geanteeth engaging thegear teeth on the han dle anola: projection carried by the handle,forming a fixed jaw to cooperate with i the movable jaw.

5. A wrench comprising a handle having gear teeth on its end, a movableaw, a link pivotally connecting the movable jaw t0 the handle, gearteeth on the said jaw adjacent the link, to engage the gear teeth on thehandle, and means carried by the jaw and the handle for engaging a pipe,rod or other article to be turned.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANKLIN WILLIAM FRITCHEY.

'lVitnesses ERNEST A. Coornn, G120. D. BLADE.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

